<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div>
        <div id="title">
            <!-- 自定义属性 data-url-->
            <button data-url="/center">个人中心</button>
            <button data-url="/news">新闻</button>
            <button data-url="/music">音乐</button>
        </div>
        <div id="view"></div>
    </div>
</body>
<script>
// 1.获取dom元素
      const oBtns = document.querySelectorAll("#title button");
      const oView = document.getElementById("view");
    //   2.创建一个路由表,规定了路由的对应信息
   const  routes = [
   { path: "/center", content: "我的主页我做主" },
        { path: "/news", content: "明明我们看的新闻是一样的,为什么我要花钱看" },
        {
          path: "/music",
          content: "周董发新歌了在几个月前",
        },
   ]

//    3遍历所有的btns 绑定点击事件
     for(var i = 0; i<oBtns.length;i++ ){
        oBtns[i].onclick = function(){
            console.log(location);
             //获取当前路由跳转的按钮上保存的path信息 然后改变地址栏地址的hash值
            location.hash = this.dataset.url;
        }
     }
     window.onhashchange= function(e){
            const newURL = e.newURL.split('#')[1];
        routes.forEach((route)=>{
            if (route.path === newURL) {
            //更新视图
            oView.textContent = route.content;
          }
        })
     }
</script>

</html>